Transfusion pipeline terminal centrifugal defoamer for coating
By installing a centrifugal defoamer at the end of the coating liquid infusion line, the centrifugal force and buoyancy of the coating liquid itself are used to separate the bubbles, which solves the problem of bubble residue in high-flow coating liquids by traditional defoaming methods and achieves a high-efficiency and low-cost defoaming effect.
Patent Information
- Application Number
- CN202520214915.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Traditional defoaming methods are difficult to completely eliminate bubbles in high-flow-rate coating solutions, resulting in residual bubbles that affect the quality of coated products.
A centrifugal defoamer is installed at the end of the coating liquid infusion line. It utilizes the centrifugal force of the coating liquid to separate air bubbles through centrifugal force and buoyancy. Combined with the design of the defoamer outlet and the leakage hole, the air bubbles are effectively removed.
Without adding power equipment, it effectively reduces the bubble content in the coating liquid, simplifies the defoaming process, reduces costs, and avoids the risk of failure, serving as a supplement to traditional defoaming methods.
Smart Images
Figure CN223831851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating technology, and in particular to a centrifugal defoamer for coating infusion pipeline terminals. Background Technology
[0002] In the processing of paper, plastics, and other slab materials, coating is widely used in industrial production as a method of uniformly combining liquid polymers, molten polymers, or polymer melts onto paper, cloth, or plastic films to produce composite materials (films). Regardless of the coating method, air bubbles in the coating liquid have a significant impact on coating quality. Therefore, eliminating air bubbles in the coating liquid has become a critical requirement in coating liquid supply systems. Traditional physical defoaming methods include negative pressure defoaming, static defoaming, and ultrasonic defoaming. These methods focus on eliminating air bubbles in the coating liquid storage tank. However, because some coating types require the recycling of the coating liquid with large flow rates, traditional methods are insufficient to completely eliminate air bubbles in the liquid. As a result, residual air bubbles in the coating liquid storage tank can be carried into the outlet pipeline, thus affecting the quality of the coated product. Utility Model Content
[0003] The purpose of this invention is to provide a centrifugal defoamer for the terminal of an infusion line used for coating, in order to reduce the amount of air bubbles contained in the coating solution.
[0004] To achieve the above objectives, this utility model proposes a centrifugal defoamer for coating infusion pipeline terminals, including a flow guide cover. The flow guide cover is connected to the top of the centrifuge tank via an alignment block. A storage tank is connected to the bottom of the flow guide cover. The centrifuge tank is disposed inside the storage tank. The centrifuge tank is connected to the bottom of the flow guide cover and the top of the storage tank via a positioning groove.
[0005] Preferably, the top of the flow guide cover is provided with a bubble discharge port, and the side of the flow guide cover is provided with a liquid inlet.
[0006] Preferably, a baffle plate is provided above the positioning groove, and a centrifuge tank is connected below the positioning groove. The centrifuge tank is conical, and a leakage hole is provided at the bottom of the centrifuge tank.
[0007] Preferably, the alignment block is inserted into the positioning slot to achieve positioning connection.
[0008] Preferably, the liquid storage tank includes a liquid storage tank body, the liquid storage tank body is cylindrical, and the bottom of the liquid storage tank body is connected to a liquid outlet.
[0009] Therefore, the centrifugal defoamer for coating infusion lines using the above-described structure of this utility model has the following beneficial effects:
[0010] (1) Placed at the end of the infusion line, it does not interfere with other defoaming devices and serves as a supplement to the previous defoaming methods to further reduce the bubble content in the coating liquid.
[0011] (2) No additional power source is required. It relies on the centrifugal force of the coating liquid to eliminate the foam at the top of the liquid. It is simple, effective and low cost.
[0012] (3) It is a static mechanical defoaming method, which has no possibility of failure and no risk of runaway. It can play an important role when other defoaming methods fail.
[0013] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a centrifugal defoamer for a coating infusion pipeline terminal according to the present invention;
[0015] Figure 2 This is a top view of a centrifugal defoamer for a coating infusion pipeline terminal according to the present invention.
[0016] Figure 3 This is a schematic diagram of the flow guide cover structure of a centrifugal defoamer for coating infusion pipeline terminals according to this utility model;
[0017] Figure 4 This is a top view of the centrifugal defoamer guide cover for a coating infusion pipeline terminal according to this utility model;
[0018] Figure 5 This is a schematic diagram of the centrifuge tank structure of a centrifuge defoamer for a coating infusion pipeline terminal according to this utility model;
[0019] Figure 6 This is a top view of the centrifuge tank of a coating infusion pipeline terminal centrifuge defoamer according to the present invention;
[0020] Figure 7 This is a schematic diagram of the storage tank structure of a centrifugal defoamer for a coating infusion pipeline terminal according to this utility model;
[0021] Figure 8 This is a top view of the storage tank of a centrifugal defoamer for a coating infusion pipeline terminal according to this utility model.
[0022] Figure 9 This is a schematic diagram illustrating the working principle of a centrifugal defoamer for coating infusion pipeline terminals according to this utility model.
[0023] Attached reference numerals: 1. Flow guide cover; 101. Bubble discharge port; 102. Liquid inlet; 103. Alignment block; 2. Centrifuge tank; 201. Positioning groove; 202. Centrifuge tank body; 203. Baffle plate; 204. Leakage hole; 3. Storage tank; 301. Storage tank body; 302. Liquid outlet. Detailed Implementation
[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different constituent parts. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] Example
[0026] like Figure 1 and Figure 2 As shown, a centrifugal defoamer for coating infusion line terminal includes a flow guide cover 1, which is connected to the top of a centrifuge tank 2 via an alignment block 103. A storage tank 3 is connected to the bottom of the flow guide cover 1, and the centrifuge tank 2 is disposed inside the storage tank 3. The centrifuge tank 2 is connected to the bottom of the flow guide cover 1 and the top of the storage tank 3 via a positioning groove 201.
[0027] like Figure 3 and Figure 4 As shown, the top of the guide cover is provided with a bubble discharge port 101 for discharging air bubbles in the liquid, and the side of the guide cover is provided with a liquid inlet 102 for introducing liquid into the centrifuge tank 2. The alignment block 103 is located at the bottom center of the guide cover 1.
[0028] like Figure 5 and Figure 6 As shown, a positioning groove 201 is provided on the top of the centrifuge tank 2. The alignment block 103 is inserted into the positioning groove 201 to realize the positioning connection between the guide cover and the centrifuge tank 2, ensuring the correct alignment of the guide cover 1 and the centrifuge tank 2 and realizing coaxial rotation. A baffle plate 203 is provided above the positioning groove 201, and a centrifuge tank body 202 is connected below the positioning groove 201. The centrifuge tank body 202 is conical, and a leakage hole 204 is provided at the bottom of the centrifuge tank body 202 for discharging the centrifuged liquid into the storage tank 3.
[0029] like Figure 7 and Figure 8 As shown, the liquid storage tank 3 includes a liquid storage tank body 301, which is cylindrical and used to collect the liquid after centrifugation. The bottom of the liquid storage tank body 301 is connected to a liquid outlet 302.
[0030] Working principle: such as Figure 9 As shown, in actual use, after the coating liquid enters the inlet 102, it is guided by the guide cover 1 to rotate once along the inner wall of the centrifuge tank 2. It then enters the interior of the centrifuge tank 2 through the baffle 203 and generates centrifugal force. As the liquid rotates rapidly, the centrifugal force throws the bubbles toward the center area of the centrifuge tank 202 and separates them from the liquid. The bubbles are discharged through the bubble outlet 101 using the principle of gas floating. The remaining liquid flows into the storage tank 302 through the leakage hole 204 and is transported to the external pipeline through the outlet 302.
[0031] Therefore, this utility model provides a centrifugal defoamer for the terminal of a coating infusion line with the above-mentioned structure. Addressing the problem that traditional defoaming devices cannot eliminate air bubbles in the pipeline under high flow conditions, this invention adds a defoaming device to the end of the infusion line. Utilizing the potential energy of the liquid itself, it eliminates the need for additional pressurization equipment and avoids secondary shearing of the liquid. Through the combined action of centrifugal force and buoyancy, it separates and removes air bubbles from the coating liquid, thereby eliminating the air bubbles contained within it.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A centrifugal defoamer for coating infusion line terminals, characterized in that: It includes a flow guide cover, which is connected to the top of the centrifuge tank via an alignment block. A liquid storage tank is connected to the bottom of the flow guide cover. The centrifuge tank is disposed inside the liquid storage tank. The centrifuge tank is connected to the bottom of the flow guide cover and the top of the liquid storage tank via a positioning groove.
2. The centrifugal defoamer for coating infusion pipeline terminals according to claim 1, characterized in that: The top of the flow guide cover has a bubble discharge port, and the side of the flow guide cover has a liquid inlet.
3. A centrifugal defoamer for coating infusion lines according to claim 2, characterized in that: A baffle plate is provided above the positioning groove, and a centrifuge tank is connected below the positioning groove. The centrifuge tank is conical, and a leakage hole is provided at the bottom of the centrifuge tank.
4. A centrifugal defoamer for coating infusion lines according to claim 3, characterized in that: The alignment block is inserted into the positioning slot to achieve positioning connection.
5. A centrifugal defoamer for coating infusion pipeline terminals according to claim 1, characterized in that: The storage tank includes a storage tank body, which is cylindrical, and an outlet is connected to the bottom of the storage tank body.